Those are two sources for the same paper.
Conclusions:
- Expected to reduce the formation of large sulfate crystals. - no data presented to support this. It's a speculative statement.
- Presence retards the formation of of hydrogen at the lead electrode - demonstrated.
- Drop in impedance of the electrode (demonstrated, but concentration is critical) is expected to reduce the total resistance of the electrode, which is expected to enhance charge acceptance and life of battery - two more speculative statements for which there is no supporting data.
Basically, adding it to a healthy battery
may reduce the formation of harmful lead sulfate crystals, lower internal resistance and improve cycle life. No information is presented that demonstrates the additive to be beneficial to used batteries. In fact, they didn't test actual batteries, they built their own batteries with components and used an atypically low SG electrolyte, i.e., they tested battery materials in a pristine condition and did it with lower concentration sulfuric acid than is typical.
I get that you have anecdotal evidence that this works, but if you didn't test the actual capacity, you can only say you restored voltage and some capacity. The reality is that equalization charges consistent with those recommended by Trojan and Rolls are amazingly effective in restoring batteries that are not degraded past a certain point. Once batteries are past that certain point, they're gone.
I have personally done before/after testing on about a dozen batteries ranging from small automotive batteries to large deep cycle batteries by Rolls and Trojan. I used the reserve capacity (RC) rating to establish the before and after results. The most noteworthy was a Interstate 24 series deep cycle battery. It was only six months old, but hadn't been charged. It would rest at 12.4V and almost immediately hit 14.4V under charge. It originally tested at 40% capacity (25A discharge to 10.5V to measure reserve capacity) with low specific gravity. Following a single equalization charge to 16.2V until the SG stopped rising (about 4 hours), the post-equalization charge test was at 92% capacity. Improvements in neglected T-1275 batteries were on the order of 7-20%
I've also tried pulse chargers, and I see no evidence that they provide any meaningful benefit to
degraded batteries. There is some evidence that maintenance charging with pulse chargers may slow the rate of degradation.